Improved device for opening furnace-doors



UNITED STATES PATENT OFFICE.

HENRY FESSLER AND HENRY MAXELL, OF' CANTON, OHIO.

lMPFOVED` DEVICE FOR OPENING FURNACE-DOORS.

Specification forming part of Letters Patent N0. 58,799, dated October 1G, 1866 To all whom it may concern.:

Be it known that we, H. FEssLER and H. MAXELL, ot" Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Doors for Locomotives or Steam-Engines; and we do hereby declare that ,the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

On the annexed drawings, making part of this specification, A represents the front of the tire-furnace on a locomotive or of a steamengine. B represents a frame :connected with this front, said frame consisting mostly of a lloor in front of the furnace.

O represents a shaft, which stands in a vertical position, having a bearing in the frame B and onein an arm, I), which projects from the front A, as shown in Fig. l. This shaft has secured to it a slotted bar, E.

F represents the furnace-door, which is provided on its outside4 with a headed pin, ct. This pin passesI through the slot in the har E, and its head prevents it from coming out of said slot.

Near the lower end of the shaft O and secured to it are two small ears, d, and hetween these ears a connecting-link, e, is pivoted at one end. The other end of the link e is pivoted to an arm, H, of a lever, G. The lever G has its fulcrum at cv, under the frame, but secured to said frame B. The outer end of lever Ghas secured toit a foot-board, I. A slot is cut in the frame I3 for the lever G to work in, and asquare opening is also cut in said frame to allow the foot-piece to work up vand down through it. Under the footpiece I isa coiled-wire spring, which rests upon a cross-piece, K, under the frame B. This spring pressing against the foot-board I bears it from the crossvpiecc K.

In order to open thedoor F it is only necessary to press the foot upon the board I. This operates the lever G and its arm H, and through the connecting-link c the shaft O, which turning in its hearings causes the bar E to draw the door back. The pin a, slides in the slot of the bar E as the door opens.

Another foot-piece L, with a lever, M, may be used, when desirable, by simply attaching the connectinglink 0 011 the end of the lever M to the shaft O in such a manner that it will turn said shaft, and thus open the door.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

lfThe door F, pin a, har E, and shaft O, arranged and used substantially as and for the purpose herein specified.

2. The arrangement, with the shaft O, of the connectinglink e, lever G, foot-piece I, and spring J, substantially in the nia-nner and for theI purpose set forth.

In witness that we claim the foregoing we have hereunto set our hands.

HENRY FESSLER. HENR Y MAX ELL.

Witnesses J. GREvoIsU, Jr., AAREN BARRAL, 

